Double-walled foldable carton



Aug- 17, 1948- w. G. FREEL ETAI. 2,447,243

DouBLE-wALLED FOLDABLE CARTON Filed Jan. 2l, 1941 3 Sheets-Sheet 1 1 Qi INVENTOR.

WILLI/m Guang/v FREEL,

.SAMUEL FLaYo .Jg/ves,

Aug. 17, 1948. w. G. FREEL ET AL DOUBLE-WALLED FOLDABLE CARTON 5 Sheets-Sheet 2 Filed Jan. 21, 1941 RL.. 0.?. mm. mm... m E M O VNJ W mn .A wn@ Lo an M L MW MM wu.

Aug. 17, 1948.

Filed Jan. 21, 1941 W. G. FREEL ET AL.

DOUBLE-WALLED FOLDABLE CARTON 3 Sheejzs-Sheet 3 INVENTOR WILLI/am GLmnEN FREEL SAMUEL FLoya Janes AgToRNEY.

Parentalv Ang. .17, 194s London, On

o, Canada, assignors, by menne assignments, to William P. Frankenstein, Cin` cinnati, Ohio applicati@ January z1,1s41,seria1 No. naxos l In Canada January 19, 1941i .1;

s'clsims. cl. y22e-.34)

(Granted under the provisionsof sec. 14',`act aufv March 2, 1927: 357 0. .G. n

, Ourinvention relates to cartons, more particularly to cartons of the foldable or collapsible type'usually supplied in the fiat by the manufacturer and erected or set up by the packer. Speciilcally it is related to that type of carton having double walls with airspace and-to cartons having double walls without lair space.

One of the objects oi our invention is to provide a carton of the above-mentionedstyle having neater ends and more iinished appearance generally.

Another object is to provide a carton made up from a blank on which printing and/or other finish desired need be impressed on one of its faces only no matter where it is to appear on the set up carton.

Another object of our invention is to provide a carton which may be made up from a blankhaving one nished side only and yet designed that only this iinished surface will appear throughlout the-carton resulting in a product of good importance is to provide a carton which may be' set up much more quickly than is possible with other cartons of this nature.

Other objects as well as many'advantages of our invention will 'become apparent in thev following description thereof supplemented by drawings illustrating a true embodiment thereof.

.As in the -other'cases above referred-to thel .carton is formed from a single blank, which of course includes more thanone piece of material joined-together if the carton were to Vbe of exceptional size. One of the`diil'erences, however,

lies in the fact that the bottom inside surface as well as the inner and outer Visible surfaces of the double walls exhibit the one surface of the blank so that a blank may. be printed on one face and-.in one operation for matter to appear on'any of the above-mentioned `surfaces when erected. The same applies to the underside of the carton either wholly or partly, depending as to whetherfthe bottom is wholly doubled or partly doubled in the manners hereinafter elucidated.

Another departure from previous forms resides in the location in the blank -of the inner and outer wall sections with respect to the bottom.

In-the former practice the outer side of the double wal-l followed the bottom portion after being defined by a crease and the bottom extended underneath the wall. In the-present case the inner wall section is adJacent the bottom section integrally, and is followed by the top spacing portion and outer wall-section which in turn is followed by the lower wall-spacing section which is continued to form either the complete or partially doubled bottom. One important result of this construction is that the side walls and the end walls are for all intents and purposes identical and that all four inside surfaces form a continuous wall integrally adjacent the bottom.

In the drawings:

Fig. 1 isa perspective view of a carton ing to this invention full erected: i

Fig. 2 is a view ofone end thereof as seen from the underside showing the end joint when the bottom is only partly doubled;

Fig. 3 is a cross-sectional view thereof, bottom partly doubled;

Fig. 4 is a cross-sectional view corresponding tovFig. 3 but for its fully doubled bottom;

Fig. 5 is a cross-sectional viewof the carton also showing a modified form of fully doubled bottom; v 'Fig.' 6 is an underside view of one end of the carton corresponding to Fig. 5 showing the thus simplified end joint;

Fig. 7 is a, cross-sectional view of the carton corresponding to some extent Fig6 so far as Vaccordthe fullydoubled bottom is concerned but modied so as to provide. anintegral flap cover therefor;

Fig. 8 is an end view of the carton at one stage of erection thereof; Fig. 9 is a plan view of the carton blank corresponding to Fig. 3, the dotted lines'showing its extended for-m to correspondto Fig. 4;'

Fig. 10 is a plan view of one half of the bl-ank required' for a carton corresponding to Fig. 5;

Fig. 11 is a pian vie'w of one half of the blank requiredfor a carton having a cover ilap and corresponding to Fig. 7;

Fig. 12 is a top view of one end lof the carton with outer section oi' 1 the end wall Ibeing :split in two, one of the split portions being turned wall is more securely held in position;

Fig. 15 is a view similar to Fig. 6, that is. a plan view of the under side of a carton formed from the blank of Fig. 14;

Fig. 16 is a cross sectional view through Fig. 15 taken on line Il-IB on said Fig. 15;

Fig. 17 is a pian view of one half of a blank somewhat similar to Fig. 11 but for providing a double thickness cover whereby the same finished surface is visible on the outer side of the cover as well as the underside thereof;

Fig. 18 is a cross sectional view similar to Fig. 7 but of a carton made from the blank of Fig. 17;

Fig. 19 is a fragmentary sectional view of certain parts of Fig. 18 .but showing the cover as retained in an open position.

Similar reference numerals denote identical parts throughout the drawings, and although difference is alluded to ends and sides it is to be noted that these statements.are for reference purposes only since in practice all sides may be made equal in length or again the longer walls may correspond. so far as their construction or that part of the blank used are concerned to what are termed ends and vice versa throughout this Aspecification and claims.

Referring to the drawings I denotes the inner bottom or in any event the bottom, I8 the inner section of the side walls, l1 the outer section of the side walls. while I8 and i9 denote the inner sections and outer sections respectively of the end walls. The upper sections and lower sections of the side wa-lls are denoted by numerals 20 and 2| respectively. The end wall upper and lower sections are denoted by numerals 22 and 23 respectively, the latter also serving as a tab to removably fasten the outer end walls to the bottom.

It is to be noted that all sections of the carton are formed by bends defined by creases impressed in the blank shown in the illustrations by means of dashes.

The ends of portions 22 are cut at an angle of 45 giving a mitered frame appearance to the carton as shown in Fig. 1.

Referring to Figs. 2, 3, and 9, it will be seen that a narrow portion 24 of the blank follows the lower wall sections 2l. These narrow portions are fastened to the under-side of the inner bottom preferably by means of adhesive. Their reduced length, as compared to sections 2| provide space for portion 23 when inserted thereunder in the erection of the carton and in addition provide stops therefor as shown in Fig. 2. If and when the carton is to have'a full doubled bottom, portions 24 are made wider as indicated in Fig. 9 by dotted lines, which portions meet along their outer edge when adhesively or otherwise fastened to the inner bottom section as shown in Fig. 4. By providing portions 24 in still wider form as in the blank in Fig. 10, they may be adhesively joined together beneath the inner bottom as shown in Fig. 5 so that they need not be cut short for portions 23 of the ends which may be inserted between the inner bottom and the thus formed separate outer bottom.

By modifying the last-named form, Fig. 10, to that shown in Fig. 11, by removing the outer and lower side wall sections from one side of the blank and providing a portion on the other side thereof comprising sufficient material to include said removed sections as well as full outer bottom section, a carton having a cover as shown in Fig. 7 may be provided. To arrive at this, a tab 23 is provided instead of the removed outer wall section which is joined to the shifted outer wall section on the side of the box as shown in Fig. 7 and a portion 2B is added integral to the blank next to the shifted outer wall section adapted to fold over the carton on crease 31. In the blank all inner wall sections are Joined together by squares 23 which have an angular crease permitting this square portion tobe folded in two when the carton is erected then folded in that space between the end wall sections thereby holding the walls together, see Fig. 12. For better corner finish and enhanced rigidity the outer side wall sections are provided with tabs 23 folded inwardly of the bottom end walls.

In the making of the cartons. portions 24 of the blank are fastened to portion I l while the same are in the flat as shown in Fig. 13. All that is necessary to be done on the part of the user to erect the carton is to raise up the double sides. fold in corners 28 and iiaps 23. bend over the end outer wall sections and insert tabs 23 between the inner and outer bottoms. The assembly procedure for the modined forms shown in section in Figs. 4, 5 and 7 is so obvious that specific explanation is deemed unnecessary.

By modifying the blank shown in Fig. 9 to that shown in Fig. a more secure fastening of the end wall is obtained. This modification consists in providing the end wall bottom portion 23 with a crease 30 and reducing the width of the portion 23 to that of the inside bottom Il ythereby providing a tucking tab 3i.

By this construction the end wall bottom portion 23 instead of being tucked under the side wall bottom portions 24 is turned down and tucked within the space between the inner and outer sections of said end wall and held in place by the `in-fold corners 2l, all of which is illustrated in Figs. 15 and 16. With this latter construction there is no danger of the end wall bottom portion 23 being released should the carton be slid along a support on its bottom and inadvertently striking an obstruction as would be the case with a construction such as disclosed in Fig. 6. 'Ihis result is attained because the said end wall bottom is now flush with the carton bottom and securely retained by the in-folding of tab 3l. r

The blank of Fig. 17 is obtained by a furth shifting of the sections of the blank of Fig. 9 beyond that done in Fig. 17 over said Fig. 9. In other words the tab 2l of Fig. 11 is shifted to the other end of the blank as a tab 32 which really becomes the inner wall section of the back side wall and adjacent this tab or wall is formed the back-side top wall section 20. Top wall section 23 has connected to its other end a top panel 33 which connects at its other end with the top panel 23 of Fig. 11. With this blank the under surface of the pasting inner back wall section 32 is secured to the inner face of the normal inner back wail section i3 otherwise the blank is assembled in the same manner as those above.

With this blank a carton as illustrated in Fig. 18 is provided and in which the same walls are had as those illustrated above and further in which the same side or finished surface of the carton is exposed throughout the exterior or vislble surface thereof, that is, the inner and outer surfaces of the side and end walls. the inner and outer surfaces of the bottom andthe inner and outer surfaces of the lid or cover are identical and if any or all of these surfaces require printing, ornamentation or embellishment it can be done in one operation and on the same surface of angina the cardboard or other material of which the carton is made.

By providing the blank with a slit 34 substantially at the transverse center A,oit the blank of Fig. 17 and on the crease or fold line between the outer cover panel 26 and outer section i1 of the back wall a relatively stil! .piece of material 35, such as card board, may be arranged for maintaining the cover in an open position, as illustrated in Fig. 19. In order to position the lid or cover of the carton as illustrated in Fig. 19, the card board strip 35 is inserted through the slit Il and positioned upwardly between the cover panels 26 and 33 and is then worked downwardly into the air space of the back wall between its inner and outer wall sections where it is retained as is readily evident from an inspection oi' Fig. 19.

In the making oi.' a carton from the blank gf Fig. 17 the same steps are followed as above described with the additional step of securing the inner back wall section to the portion oi the blank adjacent the bottom panel which normally forms the inner wall of the carton such as illustrated in Fig. 1.

What is claimed is: o

1. In a carton of the class described the combination of a bottom panel, hollow side walls along two opposed sides of said bottom panel, each comprising an inner wall member integrally hingedly connected to said bottom panel and an outer wall member having a securing ilap portion hingedly connected to its lower end and permanently connected to the bottompanel but with the ends of said portion free of the bottom, end walls along the remaining two opposed sides of the bottom panel each comprising an inner wall member integrally hingedly connected to said bottom panel and an outer wall member having a flap at its lower end adapted to having its corners inserted beneath the free ends oi' the outer side wall members securing aps for releasably securing the end walls in position.

2. In a carton of the class described the combination of a bottom panel, side walls along two opposed sides of said bottom panel, comprising a; une: wsu member integrally hingedly e 2,284,959'

nected to said bottom panel and an outer wall member having a securing nap portion hingedly connected to its lower end and permanently connected to the bottom panel, but with the ends of said portion free of the bottom, and walls along the remaining two opposed sides of the bottom panel each comprising an inner wall member integrally hingedly connected to said bottom panel, a topwall member and an outer wall member having a ilap at its lower end adapted to having its corners inserted beneath the free ends of the outer side wall members securing ilaps for releasably securing the end walls in position.

3. A carton of flexible material comprising a bottom, side walls, double end walls spaced apart a substantial distance and connected by a top wall, and corner sections hingedly connecting the ends of the side walls with ends ot one'of the end walls, the corner sections being folded upon themselves and converging across said space between the inner and outer end walls, the folded corner sections having top edges disposed directly and 'immediately beneath said top wall to preclude inward collapsing thereof.

WILLIAM GLIDDEN FREEL. SAMUEL FLOYD JONES.

nummers orrnn The following references are of record in the ille of this patent:

UNITED STATES PATENTS Number Name Date 189,898 Morgan Apr. 24, 1877 978,569 Elkin Dec. 13, 1910 1,081,068 Vance Dec. 9, 1913 1,140,794 Brown May 25, 1915 1,211,n3 Pinkerton Jan. 2,1917 1,824,927 Powell Sept. 29, 1931 f 2,038,845 Locke, Jr Apr. 23, 1936 2,100,750 Ringler Nov. 30, 1937 2,116,513 Frankenstein May 10, 1938 2,146,318 Viscount Feb. 7, 1939 2,170,723 Marx Aug. 22, 1939 Guyer et al. June 2. 1942 

